Solution System 52Service Manual – SC351
Troubleshooting
Trouble Possible Causes Remedy
Small amount of solution or no solution
reaches the brush
The valve between tank and solution hose is clogged/dirty Clean
The solenoid valve (EV) is faulty or the electrical
connection is open
Replace the solenoid valve or repair
the electrical connection
There is dust/debris in the tank or in the detergent hoses,
obstructing the solution ow
Clean the tank/hoses
The function selector fuse (F3) is open Replace
The solenoid valve relay (KT1) is broken Replace
The program selection knob/rotary switch (SW1) is broken Replace
The levers or the machine start-up enabling push-button
(SW2) are broken
Replace
The solution leaks when the machine is
off
The solenoid valve (EV) is dirty/broken Clean/replace
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